A High Definition (HD) plasma cutter is a type of cutting machine that uses a plasma torch to cut through metal. The "High Definition" aspect refers to the precision of the cuts that can be achieved with this type of machine. HD Plasma Cutter is typically uses a computer-controlled system to precisely control the plasma arc, resulting in cleaner and more precise cuts than traditional plasma cutters. Some advantages of HD plasma cutters include faster cutting speeds, minimal material waste, and the ability to cut through thicker materials than traditional plasma cutters. However, they can be more expensive and require a higher level of expertise to operate.